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Saturday, 31 October

JEE Main · Chemistry · Haloalkanes and Haloarenes

Ambident Nucleophiles (Cyanide/Nitrite)

JEE Main asked Ambident Nucleophiles (Cyanide/Nitrite) 4 times in 4 of the 108 shifts Lumi analysed, in 2021, 2023 and 2024. It belongs to SN1 and SN2 Mechanisms, in Haloalkanes and Haloarenes (Chemistry). The longest wait between two years asking it was 2 years. In 2021 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
4
in 4 shifts
Years
3 of 8
First asked
2021
last in 2024
Pattern
Comes in cycles
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2021, 2023 and 2024. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.050.10’170’200.07’210’220.07’230.05’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 2 in 24 shifts · 2022: 0 in 24 shifts · 2023: 1 in 12 shifts · 2024: 1 in 18 shifts · 2025: 0 in 8 shifts · 2026: 0 in 9 shifts.

Shift by shift

Each square is one analysed shift, in date order. Open a filled one for that paper.

  • 20260 of 9
  • 20250 of 8
  • 20241 of 18
  • 20231 of 12
  • 20220 of 24
  • 20212 of 24
  • 20200 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Match the list is the usual form. Skill tested: conceptual.

  • Predict product of reaction
  • Match list on reagents and products of haloalkane

Difficulty

Easy 0Medium 3Hard 1

Every question was multiple choice.

Every question

All 4 questions

From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.

  1. 9 Apr 2024, Shift 2 · Q75[figure: C6H5−CH(CH3)−CH(OCH3)−Br\mathrm{C_6H_5-CH(CH_3)-CH(OCH_3)-Br} (benzylic carbon bearing CH3_3, next carbon bearing both OCH3_3 and Br)]…HardSingle correctHas a figure
  2. 13 Apr 2023, Shift 2 · Q75Match List I with List II 1 - Bromopropane is reacted with reagents in List I to give product in List II LIST I - Reagent | LIST II -…MediumMatch the list
  3. 18 Mar 2021, Shift 2 · Q42Given below are two statements : Statement I : C2H5OH\mathrm{C_2H_5OH} and AgCN both can generate nucleophile. Statement II : KCN and AgCN…MediumTwo statements
  4. 17 Mar 2021, Shift 2 · Q43The correct pair(s) of the ambident nucleophiles is (are) : (A) AgCN/KCN\mathrm{AgCN/KCN} (B) RCOOAg/RCOOK\mathrm{RCOOAg/RCOOK} (C)…MediumOther

Shifts: 17 Mar 2021, Shift 2, 18 Mar 2021, Shift 2, 13 Apr 2023, Shift 2, 9 Apr 2024, Shift 2.

Same topic

Other ideas in SN1 and SN2 Mechanisms

SN1 and SN2 Mechanisms has 19 ideas JEE Main has asked; 12 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas